Machine for making spectacle-frames.



No. 65!,284. Patented June '5, I900. J. WEST. MACHINE FOR MAKING:SPECTACLE FRAMES.

(Application filed May 9, 1899.) W -D l0 Sheets-Sheet I.

E Norms vzvzns 0a., FHOTO-LITHO.. WASHINGTON, n. c,

No. 65,284. Patented June 5, I900.-

-J. WEST. MACHINE-FOB MAKING SPEGTASLE FRAMES.

(Application filed m 9, 1509.

I0 Sheets8heet 2.

(No Model.)

IIIIIII "No. 65|,284. Patented June 5, I900.

- J. WEST.

MACHINE FOR MAKING SPECTACLE FRAMES.

- (Application fileQ May 9,-1899.) v I (No Model.) In sheets-Sheet 3.

No. 65!,284. Patented tune 5, I900.

.1. WEST.

MACHINE FOR MAKING SPECTAGLE FRAMES. 4

(Application filed m 9 1599. um Model.)

IQ. Sheets-Sheet 4,

m: NORRIS vzrzns co. PHoio-umo msnmsmu. u. c.

l0 Sheets-Sheet 5..

J. WEST. MACHINE FOR MAKING SPEGTACLE FRAMES.

Patented June 5, I900;

(Application filed. Ma, '9 1899.) (No Model.

m: Mourns Pawns co. Fnormuwo" wnsumorou, 0. c4

J. WEST.

MACHINE FOR MAKING SPECTACLE FRAMES.

(Application filed May 9, 1899.)

No. 65l,284. P'atanted June 5, 1900.

(No Model.)

I0 Sheets-Sheet 6.

No. 65!,284. Patented June '5, I900;

J WEST. MACHINE FOR MAKING SPECTACLE FRAMES.

(Application filed may 9, 1899.) (No Model.) I0 Sheetg-$heet 7.

No. s5|,2s4.- Patented June 5, 1900.

J. WEST.

MAGHlNE FOR MAKING SPECTACLE FBAIIIES.

(Application filed may 9, 1899.)

(No Model.)

No. ss|,2s4. Patented June 5; I900.

J. WEST MACHINE FOR MAKING SPECTACLE FRAMES.

- (Application filed. May'Q, 1899.)

(No Mod l.) l0 Sheets-Sheet 9.

I v 12 i I 32,2 5/ 11 THE Nonms PETERS co.. mom-urns wAsnmumN, u. c.

(No Model.)

Y Y Patented June 5', I900. J. WEST.

MACHINE FOR MAKING SPECTACLE FRAMES;

(Application filed May 9, 1899.\

Z l0 Sheets8heet ID.

"rm: mums PETENS 0.1.. FHOTO LITNO.. WASNINOTON. n. c.

times S AT PATENT Genoa.

JAMES \VES T, OF LONDON, ENGLAND.

MACHINE toe, MAKING, SPECTACLE-FRAM ES.

SPECIFICATION forming'partof Letters Patent No. 651,284, dated June 5,1900. Application filed May 9, 1899. Serial No. 716,166. (No model.)

To all whom, it may concern:

' Be it known that LJAMES WEST, a subject of the Queen of Great Britain,residing at Stamford Works, Stamford road,.Dalston,

machines for making the frames of spectacles. and eyeglasses in whichmagnifying or other lenses are held.

The objects of my improvements are to provide a machine such as willmake the frames of spectacles and eyeglasses of a single piece of metalwithout the aid of brazed joints and to cut and shape such single pieceof metal automatically from a bar rolled .to a suitable section of steelor other metal. I attain these objects in the manner and by themechanism illustrated in the accompanying drawings, in.

Which- Figure 1 is a perspective view of a bar of steel outof which thespectacle-frames are made. Fig. 2 is a plan of the same, showingtransverse cuts by which a piece of the metal is fashioned and cut offfrom the bar to form.

the spectacle-frame. Fig. 3 is .an end View of the same. off piece. Fig.5-is a plan showing the surplus part of the metal removed. Fig. 6 showsthe same with the central bridge or nose piece extended. Fig. 7 shows afront-view of the same bent to form the nosepiece and the frames for thelenses. Fig. Sis an edge view of Fig. 7. plan, the junction of the endsof the lensframe and the pins for the side or temple. Fig. 10 shows afront view of the .same. Fig, 11 shows an end view (from the inside) ofFig. 10. Fig. 12 shows a single frame for the lens of an eyeglass. Fig.13 shows the result of the operations effected by the differentmilling-cutters. Fig. ltshows a front view of the machine bywvllich thepart to form the spectacle -frame is automatically cut and shaped from asteel bar. Fig. 15 is a plan of the same machine, and Fig. 16 a planshow- -the cutters are inaction. view similar to Fig. 14 with the dottedlines Fig. l-is a side view of the cut-:

Fig. 17, but without the dotted. lines.

Fig. 9 shows, on a larger scale, in.

ing all the working parts in dotted lines. Fig. 1'7. is an end view ofthe same machine. Fig. 18 is aside view of the upper cam-spindle. Fig.19 is a side view of the lower cam-spindle. Fig. 20 is an end view, on alarger scale, of the two cam-spindles in their operative positions. Fig.21 is a similar view of the two cam-spindles in their inoperativepositions. Fig. 22 is a side View of the screw actuating themilling-cutter carriage. Fig. 23 is an end .view of the same. .Fig. 24is a plan of the lower grooving milling-cutter. Fig. 25 is a plan of theupper and lower shaping millingcutters. Fig; 26 is a plan,'on a smallerscale,

of the pivoted arm carrying the upper shaping milling-cutter. Fig. 27 isa similar side view of the same. Fig. 28 is a similar plan of thepivoted arm carrying the lower shaping milling-cutter. Fig. 29 is asimilar side view of the same. Fig. 30 is a similar side View showingthe pivoted arms carrying the upper and lower shaping milling-cuttersand the cam-spindles in their position when the cutters arein action.Fig. 31 is a similar side view in the positionwhen the cutters are outjoff action. Fig. 32 shows in diagram form the relative positions of themilling-cutters and the. toothed Wheels which drive them when Fig. 33 isa front omitted- Fig. 34 is a view of one end of the machine, with thedotted lines omitted, asin .Fig; 33. Fig. 35'is a view of the oppositeend of the machine, said view being similar to Fig. 36 is a verticalsection through the line A B,

Fig. .15, looking toward the top of the sheet.

Fig. 37 is a vertical section through the'line C D, Fig. 15, and lookingdown.

Similar letters and figures refer to similar parts throughout theseveral views.

In Figs. 1 to 13,- a is a bar, of steel or other metal, from which thespectacle-frames are to be made. It is of channel shape incross-section, as shown in Fig.1, the turned-up flanges b 1) serving toproduce ultimately the lugs at each end of the eyes or lens-frames. Fromthe end of the bar is cut off transversely a piece of the proper width,(shown in Fig. 5,) and the whole of the center part is cut away with theexception of a part c, which ultimately forms the bridge or nose piece.of the spectacles and too angle, so that they are firmly held in thegrooves,) and the upper side of the strips d d, as well as the edges ofthe angular grooves, are rounded ofi, so as to lighten and improve theappearance of the spectacles. The frame being in the condition shown inFig. 5, its central part is warmed sufficiently to enable the two sides(I (Z to be separated from each other, the part 0 being stretched out,as shown in Fig. 6. The two side strips d d are then turned down atright angles and bent around into an elliptical shape to fit the lenses,as shown in Fig. 7, and the part c is bent and shaped to form thenosepie'ce, as shown in Figs. 7 and 8. When the sides have been bentaround, as shown, the lugs at their ends come face to face and arescrewed together, as shown on a larger scale in Fig. 9. Before the sidesare bent around, however, the lugs are c'ut to the shape shown in Figs.8, 9, 10, and 11, holes being made to receive the screw at e and theouter ends of the lugs being reduced to about half their thickness,leaving, however, a central pin standing up for the full thickness ofthe metal, as shown at f, so that when the two lugs are brought face toface and screwed together the ends of the pinsf meet, as shown in Fig.9, and they form together a pivot upon which. the sides or temples ofthe spectacles turn. The reduction of thickness of'the lugs leaving thepin standing is easily effected by the flat cutting end or face of acylindrical rose-bit having a central opening of the same diameter asthepin.

Where a single eyeglass is to be used, as

shown in Fig. 1", instead of a pair of spectacles a single strip cl is.cut from the bar a,

having a lug at each end and an inner angular groove for the lens.

Spectacle frames made in a single piece from abar of channeled metal arevery strong, simple, and: quickly and cheaply made; but in order thatvery large quantities of such frames may be turned out I cut the framesfrom the channeled bar a by means of the machine shown in Figs. 14, 15,16, and 17 of the drawings, in which g is a strong base which can bebolted to a foundation. 7). is a standard at one side of the base 9,havingits upper surface recessed and leveled to receive the channeledbar of metal a, which rests upon it and out of which spectacle-tram esare tobe out, as already described. A strong bridge-piece i is boltedupon the standard h and carries a screw k and hand-wheel Z, actuating apresser-footmz, the ends of which The carry blocks which fit into thechannel on the inner side of the bar a and hold the latter firmly whileit is being worked.

In order to accurately adjust the height and position of the channeledbar a, the latter rests upon slightly-cranked transverse supports a 02under the pressure-blocks at the end of the presser-foot m. The supportsit n are carried upon strong pivots 0 0 upon the standard h, and theyhave downward prolongations p p, as seen in Figs. 17 and 35, throughwhich pass screws 1" 0'', which press against the standard h and byturning which the exact adj ust-' ment of the supports it n and theexact position of the channeled bar a can be fixed.

The free end of the channeled bar a over= hangs the support and isoperated upon by transversely-moving circular milling-cutters mountedupon asliding carriaget. s isa hollow transverse slide-bed resemblingthe bed of an ordinary lathe, on which slides a carriage t, havingguides readily adjustable upon the bed. The carriage tis made totraverse upon theslides on the bed s by means of a strong screw u, theends of which turn in bearings at o and w in the ends of the bed 3, uponwhich the carriage t slides. The outer end of the screw-shaft projectsthrough its bearing 4) and has fixed upon it a tangent toothed wheel 00,gearing with and driven by ascrewy, which turns in bearings in a bracket2, bolted to the end of the bed 3. One end of the axis of the screw yisfitted with a pulley 1, which is made to revolve slowly by an endlesscord 2, passing around it and also shown passing around one end of acylinder or drum 3 of small diameter arranged across the end of the baseg and turning freely on adjustable bearings 4 and 5 in a bracket 6,bolted to the bed 8. The other end of the cylinder or drum 3 is oflarger diameter and is shown set in revolution by an endless cord 7,passing around it and around a corresponding driving-pulley 8 upon theend of the principal driving shaft or spindle 9 of the machine, whichturns in bearings 10 upon the carriage t at right angles to thedirection of movement of the carriage on its bed. The

driving-shaft 9 is driven by a pulley 11 and an endless cord 12 from adriving-pulley ata sufficient distance above the machine, (not shown inthe drawings, but set in revolution by any convenient power,) the lengthof the larger'part of the cylinder or drum 3 allowing the endless cord 7to pass along it as the carriage t moves along upon its slide.

At the back end of the carriage t is a bracket 13, having a horizontalcylindrical hole or bearing through it, in which turns a spindle 14,upon the outer end of which is fixed a handle 15, while at its other endis fixed a crankpin 16, which actuates, by means of a slot 17, in whichthe pin fits, a tooth 18 upon the lower end of a bar 19, fitting andworking in a guide 20, so that the tooth 18 can be introduced between orwithdrawn from the threads of the screw "lb by turning the handle 15,the

carriage if being fed forward by the screw it or instantly stopped, asdesired. The driving-shaft 9, turning in the bearings 10 upon thecarriage t and set in revolution by the pulley 11 and endless cord 12,as already described, carries near the middle of its length between thebearings 10 a toothed wheel 21 and at its inner end a smaller toothedwheel 22, which gears with and drives a corresponding toothed wheel 23,fixed upon a spindle 24, turning in bearings 25 upon the carriage t. Theouter end of the spindle 24 has fixed upon it a double milling-cutter26, (shown on a larger scale in Fig. 24,) having two parallel sets of Vshaped cuttingteeth. The position of the spindle 24 and cutters 26 issuch that when they are in revolution. and the car- .{riage t is fedforward upon its slide by the.

screw it the cutters out two parallel transverse grooves across thelower side of the projecting end of the channeled bar a, as describedabove and illustrated in Figs. 2, 3, 4, 5, 6, 9, 10, and 11 and on alarger scale 'in transverse section at A in Fig. 13.

27 and 28 are arms or frames (shown on a larger scale in Figs. 26 and28) pivoted at one of their ends upon accurately-adjustable centers uponthe carriage i. The lower one, '27, is pivoted at 29 30 in anearly-horizontal position below the level of the bar a, which is to beoperated upon, while the upper one, 28, is pivoted at 31 32 in anearly-horizontal position above the level of the bar a, and the twoarms or frames are pressed apart, the upper one, 28, upward and thelower one, 27, downward by a spring 33. The free end'ofthe upper arm 28is not directly above that of the lower arm 27, but somewhat in advanceof it, for a reason which will be explained presently. The arms orframes 27 and 28 are made of the shape shown in plan, so that while thepivots upon which they turn are conveniently situated upon the carriaget their outer ends are brought close to the position where themilling-cutters are to act upon the channeled bar a. These outer endsform bearings to receive freely-revolving spindles 34 35, at one end ofeach of which are fixed double milling-cutters, the cutting-teeth ofwhich are of the shape shown on an enlarged scale in Fig. 25, theircutting edges being concave or U-shaped instead of being pointed or V-shaped, as is the case with the teeth of the first cutter alreadydescribed, and shown in Fig. 24. The position of the concave teeth ofthese two double cutters is carefully adjusted, so that they are exactlyin alinement with the teeth of the cutters 26. At the outer end of thelower spindle 34 is fixed a toothed wheel 36, corresponding and gearingwith the toothed wheel 21 upon the driving-spindle 9, the teeth of thewheels being of sufficient depth and of such shape as to allow thespindie 34 to be raised or lowered througha short distance withoutaffecting their proper working. Upon the same lower spindle 34 is alsofixed a small toothed wheel 37, gearing with a similar toothed wheelfixed upon the upper spindle 35.

If when the machine is in action the carriage t is fed forward, thelower cutter commences to cut two parallel transverse V- shaped groovesacross the lower flat side of the channeled bar a of the shape shown onan enlargedscale at A, Fig. 13. The upper cutter then comes intooperation and cuts grooves from above at each side of the lower V-shapedgroove on the upper face of the channel a, at the same time rounding theupper edges of the. metal lying immediately over the V-shaped groove, asillustrated at B, Fig. 13. The lower cutter finally comes intooperation, cutting similar lateral grooves from below coinciding withand meeting those from above and at the same time rounding the sides andedges of the V shaped groove, so that the strip of metal separated hasthe form of a more or less circular wire having a longitudinal V-shapedgroove along its lower edge, as shown at C, Fig. 13. The upper cutterbeing somewhat in advance of the lower one, their cutting-teeth do notinterfere with each other.

Referring to Figs. 2, 3, 5, and 6 and to what has already beenexplained, it is evident that while the lower V-shaped cutter can cutits grooves completely across the channeled bar r a the other twocutters must be removed from the bar a at the part where the nosepiecec,

joins the parts d and must also leave the parts adjoining the flanges bb. In order to effect this, I cause the lower spindle 34, with itscutter, and the upper spindle 35, with its cutter, to be normally keptseparate by the spring 33 sufficiently to prevent them from acting uponthe bar a, the upper cutter being brought down and the lower cutterraised, when necessary, to bring them into action by means of cams.

"lwo cylindrical cams-that is to say, cylinders the peripheries of whichare turned down to the special contour necessary for the operationswhich they have to elfectare shown separately in Figs. 18 and 19, inwhich 38 represents the lower cam, which influences the upper pivotedarm 28 and spindle and cutter 35, and 39 the upper cam, which influencesthe lower pivoted arm 27 and spindle and cutter 34. The ends of thesecam-spindles can turn in bearings 40 and4l upon the transverse slide-beds, to the side of which they are firmly supported one above the otherand parallel to the central feedingscrew it, already described. oted arm27, carrying spindle and cutter 34, is connected by a connecting-rod 42with a lever 43, which turns upon a center 44 in the carriage t, thelever being extended beyond the connecting-rod and its end provided witha lateral stud 45, which rests upon the upper side of the upperspindle-cam 39, against The lower pivby a connecting-rod 46 with asecond lever 47, which turns upon a center 48 in the carriage 15, thislever being also extended beyond the connecting-rod 46 and its end beingalso provided with a lateral stud 49, which is kept pressed up againstthe lower side of the lower spindle-cam 38 -by the action of the spring33. This position is shown in Fig. 30, the upper and lowermilling-cutters both being in operation upon the channeled plate a.When, as the carriage t passes along, the studs 45 and 49 arrive atparts of the cams 38 and 39 of reduced diameter, they are pressed intothese parts by the action of the spring 33 and each milling-cutter isbrought into and out of action as required, the cams being so formedthat each cutter is automatically brought into and out of action exactlyfor the time and the depth required.

The centers 44 and 48 upon which the levers 43 47 are pivoted are.carried by a frame turning upon the center 44 and which can be fixed inany position so that the center 48 can be adjusted in its positionrelative to the center 44. 7

At the times when the milling-cutters first come into action afterhaving been raised out of contact with the bar a it is advisable thatthe speed of feed forward of the carriaget should be reduced so that thecutters may come moregraduallyintoaction. Forthispurpose the pitch ofthe feeding-screw u is made somewhat finer at the parts of its lengthwhere the speed of the carriage requires to be so reduced. Thisalteration of pitch is illustrated in Fig. 22.:

In order that the carriage i may be moved backward and forward by handwhen required, (the tooth 18 having been first withdrawn from betweenthe threads of the feeding-screw 1a,) the spindle-cams 38 and 39 arecoupled together at one end by toothed wheels of equal size, 50 51, oneof the spindles being provided with a handle 52 by which they can besimultaneously turned halt around. The two adjoining sides of thespindle-cams when the machine is at work are flattened from end to end,as shown on an enlarged scale in Figs. 20 and 21, and when they areturned half around, as shown in Figs. 21 and 31, their flat sides areoutward and the studs 45 and 49 can pass along them, the milling-cuttersbeing drawn out of action and not being affected by the cams.

In Figs. 15, 16, and 17, 53 is a small finethreaded stop-screw which isscrewed through a bracket 54, pivoted strongly upon the carriage 15.When the bracket 54 is turned down upon its pivot, the point or end ofthe screw 53 is exactly opposite to the end of the channeled plate a,and it can be adjusted so that when the said plate is pushed forwardagainst the screw it is exactly in the proper position to be operatedupon by the dilferent millingcutters. When the bar a has been fixed, thebracket 54 and screw 53 can be turned upon the pivot, as shown in Fig.17, so as to be out of the Way.

In Figs.14, 15, 16, 17, 30,and 31, 55 is a trans verse plate fixed tothe carriage tbetween the arms 27 and 28, serving as, a stop, againstwhich the arms are forced by the Game 38 and 39 when the milling-cuttersare at work. For this purpose an adjustment screw 56 is screwed throughthe upper arm 28, its point pressing against the stop 55, and 57 is asimilar screw screwed through the stop 55 and limiting the movement ofthe lower arm 27. When the milling cutters are at work, the arms whichcarry their spindles are in this way firmly held.

It is obvious that the method of causing the screw it to revolve inorder to move the carriage tand the milling-cutters carried by itforward may be varied Without affecting the essential parts ofmyinvention. For instance, it may be turned by hand by an attendant.

Having now fully described my invention,

what I claim, and desire to secure by Letters Patent, is-

1. The combination, in a machine for making spectacle-frames, of a baseg, standard It, bridge-piece i, screw 70, hand-wheel Z, presserfoot m,pivoted supports a, adjusted byscrews r, transverse slide-bed s, slidingcarriage i, feed-screw it turning in bearings w, 'w, tangent toothedwheel ac, endless screw 11 turning in brackets z, pulley 1, cord 2, drum3 turning in bearings 4, 5, in bracket- 6, cord 7, pulley 8,driving-spindle 9 turning in bearings 10, driving-pulley 11, cord 12,bracket 13 having slot 17, spindle 14, handle 15,.crankpin 16, tooth 18,bar 19, and guide 20, toothed Wheels 21, 22, 23, spindle 24, bearings25, milling V 'shaped cutter 26, frame 27 pivoted to carriaget at 29,30, frame 28 pivoted to carriage t at 31, 32, spring33 separating thepivoted frames, spindles 34, 35, turning in bearings in the pivotedframes, and carrying U- shaped milling-cutters, toothed wheel 36 gearingwith wheel 21, toothed wheel 37 gearing with toothed wheel upon spindle35, spindlecams 38, 39, turning in lugs 40,41, upon bed 3, and havingflattened sides, connecting-rod 42, lever 43 turning on center 44 incarriage t, and provided with stud 45, connecting-rod 46, lever 47turning upon center 48, and provided with stud 49, toothed wheels 50,51, coupling together the spindle-cams 38, 39, handle 52, stop-screw 53,pivoted bracket 54, fixed plate 55, and adjustment-screws 56, 57, allsubstantially as set forth.

2. The combination, in a machine for making spectacle-frames, of thetransverse slidebed .9, sliding carriage 2f, feed-screw 16, turn ing inbearings 'u, 10, means for revolving the screw u, driving-spindle 9turning in bearings 10, driving-pulley 11, cord 12, means for couplingand uncoupling the carriage t to the screw it, toothed wheels 21, 22,23, spindle 24, bearings 25, milling V-shaped cutter 26, frame 27pivoted to carriage i at 29, 30, frame 28 pivoted to carriage t at 31,32, spring 33, spindles 34, 35, turning in bearings in the pivotedframes 27, 28, and carrying U shaped milling-cutters, toothed wheel 36gearing with wheel 21, toothed wheel 37 gearing with toothed wheel uponspindle 35, spindle-cams 38, 39, turning in bearings 40, 41, upon bed 8,and having flattened sides, connecting-rod 42, lever 43 turning oncenter 44 on carriage t, stud 45, connecting-rod 46, lever 47 turning oncenter 48, stud 49, toothed wheels 50, 51, coupling together thespindle-cams 38, 39, handle 52, and means foradj nsting and firmlyholding the channeled bar a while it is being operated upon by themilling-cutters, substantially as set forth.

3. The combination, in a machine for makin g spectacle-frames,of thestandard h,bridge piece 2', screw it, hand-Wheel Z, presser-foot m,pivoted support at adjustable by screws 1', substantially as and for thepurpose set forth.

4. The combination, in a machine for making spectacle-frames, of thesliding carriage 75, tooth 18, bar 19, crank-pin 16 and spindle 14; ofthe screw to, having threads of variable pitch, for feeding saidcarriage along its bed 8 at a speed variable in different parts of itsstroke, substantially as described.

5. The combination in a machine for making spectacle-frames, of thesliding carriage i, feed-screw u and bearings therefor, wormwheel .90carried by said screw, worm '31 meshing therewith, spindle 9, pulley 1mounted thereon, cord 2, drum 3 and bearings therefor, cord 7 runningover said drum, pulley 8 over which said cord runs mounted upon saidspindle, and driving-pulley 11 mounted on said spindle, substantially asand for the purposes described.

6. The combination in a machine for makin g spectacle-frames, of thefeed-screw u and stationary bearings therefor, Worm-wheel :1: carried bysaid screw, worm y meshing therewith, bar 19 having a tooth 18 engagingsaid feed-screw, sliding carriage 15 carrying said bar, and actuatedthereby, spindle 14 having crank-pin 16 thereon, and means for turningsaid spindle and crank-pin to retract said bar from engagement with saidfeed-screw, sub

stantially as and for the purposes described.

7. The combination in a machine for making spectacle-frames, of thefeed-screw u and stationary bearings therefor, worm-wheel 50 carried bysaid-screw, Worm y meshing therewith, bar 19 having a tooth 18 engagingsaid feed-screw, sliding carriage 25 carrying said bar, and actuatedthereby, spindle 14 having crank-pin 16 thereon, and means for turningsaid spindle and crank-pin to retract said bar from engagement with saidfeed-screw, toothed wheels 21, 22, 23, spindle 24 mounted in bearings25, cutter 26, frame 27 pivoted to said carriage, frame 28 also pivotedto said carriage, spring 33 separating the pivoted frames, spindlesturning in bearings in the said pivoted frames and carrying cutters,substantially as and for the purposes described.

8. The combination in a machine for making spectacle-frames, of thefeed-screw u and stationary bearings therefor, worm-wheel a: carried bysaid screw, worm y meshing therewith, bar 19 having a tooth 18 engagingsaid feed-screw, sliding carriage t carrying said bar, and actuatedthereby, spindle 14 having crank-pin 16 thereon, and means for turnin gsaid spindle and crank-pin to retract said bar from engagement with saidfeed-screw, toothed Wheels 21, 22, 23, spindle 24 mounted in bearings25, cutter 26, frame 27 pivoted to said carriage,frame 28 also pivotedto said carriage,spring 33 separating the pivoted frames,

spindles turning in hearings in the said pivoted frames and carryingcutters, toothed wheel 36 gearing with wheel 21, toothed Wheel 37gearing with toothed wheel upon one of the spindles in the said pivotedframes, spindlecams 38 39 having flattened sides, connectingrod 46,pivoted lever 47 to which said rod is connected, stud 49 on said pivotedlever, toothed gearing between the spindle-cams 38 39, and a stop-screwand handle for operating the same, substantially as and for the purposesdescribed.

9. In a machine for making spectacleframes, the combination with aclamping device for holding the bar from which said frames are to bemade while being operated upon, a sliding carriage, means for feedingthe said carriage transversely across the path of the said bar; meansfor controlling the feed on the said carriage at the will of theoperator, spindle 24 mounted in said carriage, double cutter 26 mountedon said spindle, means for rotating said spindle, said cutters andspindle rotating beneath the plane of the said bar, spindles 34 and 35,the one mounted below and the other above the plane of the said bar;cutters having concave cutting edges mounted upon the said spindles,means operated by the machine for moving said outters to vary the depthof their out during their rotation, and a stop for setting the bar to beoperated. upon, substantially as described.

10. In a machine for making spectacleframes, the combination with aclamping device for holding the bar from which said frames are to bemade while being operated upon, means for-adjusting the level of saidbar, a sliding carriage, means for feeding the said carriage at avariable speed transversely across the path of the said bar; means forcontrolling the feed on the said carriage at the will of the operator,spindle 24 mounted in said carriage, double cutter 26 mounted on saidspindle, meansfor rotating said spindle, said cutters and spindlerotating beneath the plane of the said bar, spindles 34 and 35, the onemounted below and the other above the plane of the said bar; cuttershaving concave cutting edges mounted upon the said spindles, meansoperated by the machine for moving said cutters to vary the depth oftheir cut during their rotation, and a stop for setting the bar to beoperated upon, substantially as described. 7

11. In a machine for making spectacleframes, the combination wit-h aclamping device for holding the bar from which said frames are to bemade while being operated upon, a sliding carriage, means for feedingthe said carriage transversely across the path of the said bar; meansfor controllin g the feed on the said carriage at the will of theoperator, spindle 24 mounted in said carriage, double cutter 26 mountedon said spindle, meansfor rotating said spindle, said cutters andspindle rotating beneath the plane of the said bar, spindles 34 and 35,the one mounted below and the other above the plane of the rotation,consisting of jointed arms connected it to the said cutter-spindles,springs acting upon the said arms, and cams also acting upon the saidarms for giving to the spindles the desired movement, and a stop forsetting the bar to be operated upon, substantially as described.

In testimony whereof I have hereunto affixed my signature-in presence oftwo Witnesses.

JAMES VEST.

